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प्रश्न
Write down the formula for the heat produced when a current I is passed through a resistor R for time t.
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उत्तर
H = I2Rt where H is the heat energy produced, I is the current, R is the resistance and t is the time.
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संबंधित प्रश्न
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Anannya responded to the question: Why do electrical appliances with metallic bodies are connected to the mains through a three-pin plug, whereas an electric bulb can be connected with a two-pin plug?
She wrote: Three-pin connections reduce heating of connecting wires.
- Is her answer correct or incorrect? Justify.
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